What do you think with the below Picture ?

On a magical land of Mexico , all the animal in the land are rational.

There are 10 tigers and one goat.
Tiger can eat goat but since it's a magical land , the tiger who eats the goat , turns into goat and then can be eaten by the remaining tiger(s).

If we leave them for some time then how many goat and tiger will be there , when we come back ?

I am a prime number.
The double of myself is equal to the square of me.

which number am I?

Transform the word THINK into BRAIN while changing only one letter at a time in a manner that each of the word in the process is a real word!!!

The owner of a popular clothing store comes up with his own method of pricing items. A vest costs $8, socks cost $10, a tie costs $6, and a blouse costs $12. Using the owner’s method, how much would a pair of underwear cost?

What can you see in the middle of March and April that you can never see in any other month?

I am weightless, but you can see me. Put me in a bucket, and I'll make it lighter. What am I?

Can you complete the sequence puzzle?

AR TA GE CA LE VI LI _

I have branches, but no fruit, trunk or leaves. What am I?

Why Aeroplane windows are round?